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ClinicalTrials.gov public records Last synced Oct 18, 2026, 10:16 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1177–1200 of 3,928 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Respiratory Tract Infections (RTI) Clear all
Completed No phase listed Observational

Longitudinal Energy Expenditure and Metabolic Effects in Patients With COVID-19 (LEEP-COVID)

NCT04350073
View directory record Official record
Conditions
COVID-19
Interventions
Q-NRG Metobolic Cart Device, MuscleSound Ultrasound, Multifrequency Bioimpedance Spectroscopy
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 16, 2023 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of Lactobacillus Rhamnosus GG Vs. Placebo in Elderly Subjects Receiving Trivalent Inactivated Influenza Vaccine

NCT01368029
View directory record Official record
Conditions
Healthy, Elderly
Interventions
Lactobacillus rhamnosus GG ATCC 53103 (LGG), Placebo
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
65 Years to 80 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Mindfulness During COVID-19

NCT04319445
View directory record Official record
Conditions
Migraine Disorders, Stress, Anxiety
Interventions
Mindfulness session(s)
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
Not listed
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 2, 2022 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Phase 3 Interventional Results available

A Study of Flurbiprofen 8.75 mg Lozenge in Patients With Pharyngitis

NCT01048866
View directory record Official record
Conditions
Pharyngitis
Interventions
placebo, flurbiprofen, acetaminophen 650mg
Drug
Lead sponsor
Reckitt Benckiser LLC
Industry
Eligibility
18 Years and older
Enrollment
198 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 21, 2017 · Synced Oct 18, 2026, 10:16 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Rates of Pertussis Disease Among Persons Receiving Pentacel® or Other Pertussis Vaccines

NCT01129362
View directory record Official record
Conditions
Pertussis
Interventions
Pentacel® (DTaP-IPV/Hib), Other Pertussis Vaccines
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
Up to 59 Months
Enrollment
1,195 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
2
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 25, 2022 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Phase 3 Interventional Results available

ACTIV-6: COVID-19 Study of Repurposed Medications - Arm A (Ivermectin 400)

NCT05736861
View directory record Official record
Conditions
Covid19
Interventions
Ivermectin, Placebo
Drug · Other
Lead sponsor
Susanna Naggie, MD
Other
Eligibility
30 Years and older
Enrollment
1,800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
87
States / cities
Gilbert, Arizona • Mesa, Arizona • Peoria, Arizona + 75 more
Source: ClinicalTrials.gov public record
Updated Jun 13, 2023 · Synced Oct 18, 2026, 10:16 AM EDT
No Longer Available No phase listed Expanded access

Expanded Access Study of Exebacase in COVID-19 Patients With Persistent MRSA Bacteremia

NCT04597242
View directory record Official record
Conditions
MRSA Bloodstream Infection, MRSA Bacteremia, MRSA Right-sided Endocarditis, Covid19
Interventions
Exebacase
Drug
Lead sponsor
ContraFect
Industry
Eligibility
18 Years and older
U.S. locations
2
States / cities
Butte, Montana • Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 31, 2022 · Synced Oct 18, 2026, 10:16 AM EDT
Withdrawn No phase listed Observational

Analysis of Lung Sounds Collected by RESP Biosensor to Support Decision Making in Monitored Hospitalized Pediatric Patients

NCT05661422
View directory record Official record
Conditions
Pediatric Respiratory Diseases, Asthma, RSV Infection, COVID-19
Interventions
RESP™ Biosensor
Device
Lead sponsor
Strados Labs, Inc.
Industry
Eligibility
4 Years to 17 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Savannah, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 16, 2023 · Synced Oct 18, 2026, 10:16 AM EDT
Withdrawn Phase 2Phase 3 Interventional

Comparison Study of High Frequency Percussive Ventilation With Conventional Ventilation

NCT00308022
View directory record Official record
Conditions
Respiratory Distress Syndrome, Adult, Pneumonia, Mechanical Ventilation
Interventions
High Frequency Percussive Ventilation
Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 17, 2019 · Synced Oct 18, 2026, 10:16 AM EDT
Not listed Phase 2 Interventional

Comparative Study of EDP-420 Versus Another Antibiotic in the Treatment of Community Acquired Pneumonia

NCT00270517
View directory record Official record
Conditions
Community Acquired Pneumonia
Interventions
EDP-420 / Duration of Treatment - 3 days, Telithromycin / Duration of Treatment - 7 days
Drug
Lead sponsor
Enanta Pharmaceuticals, Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Watertown, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 19, 2006 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Phase 3 Interventional Results available

Adaptive COVID-19 Treatment Trial 2 (ACTT-2)

NCT04401579
View directory record Official record
Conditions
COVID-19
Interventions
Placebo, Remdesivir, Baricitinib
Other · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
1,033 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
53
States / cities
Birmingham, Alabama • La Jolla, California • Los Angeles, California + 44 more
Source: ClinicalTrials.gov public record
Updated Mar 14, 2022 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Phase III Double-blind, Placebo-controlled Study of AZD1222 for the Prevention of COVID-19 in Adults

NCT04516746
View directory record Official record
Conditions
COVID-19, SARS-CoV-2
Interventions
AZD1222, Placebo
Biological
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
32,450 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
78
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Little Rock, Arkansas + 66 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2024 · Synced Oct 18, 2026, 10:16 AM EDT
Active, not recruiting Not applicable Interventional

Transitional Care Model Evaluation 2020

NCT04212962
View directory record Official record
Conditions
CHF - Congestive Heart Failure, COPD, Pneumonia
Interventions
Transitional care model (TCM), Usual care
Behavioral
Lead sponsor
Mathematica Policy Research, Inc.
Other
Eligibility
65 Years and older
Enrollment
962 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study in Healthy Adults to Assess Priming With Antigenically Mismatched Live Attenuated A/H7N3 Influenza Virus Vaccine Followed by Inactivated A/H7N9 Influenza Virus Vaccine

NCT03581903
View directory record Official record
Conditions
Influenza
Interventions
H7N3 pLAIV, H7N9 pIIV
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Mar 25, 2019 · Synced Oct 18, 2026, 10:16 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Send-In Sample Collection for Comprehensive Analyses of Innate and Adaptive Immune Responses During Acute COVID-19 and Convalescence

NCT04582903
View directory record Official record
Conditions
COVID-19 Infection
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Day to 99 Years
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2031
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Pharmacokinetics, Safety and Tolerability of ALG-097558 in Subjects With Hepatic Impairment and in Healthy Subjects With Normal Hepatic Function

NCT06568861
View directory record Official record
Conditions
COVID-19
Interventions
ALG-097558
Drug
Lead sponsor
Aligos Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
2
States / cities
Miami, Florida • Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Influenza Antiviral DAS-181-F04 in Healthy Adults

NCT01651494
View directory record Official record
Conditions
Influenza
Interventions
DAS181, Placebo
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 7, 2017 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Phase 3 Interventional Results available

Anemia Studies in Chronic Kidney Disease: Erythropoiesis Via a Novel Prolyl Hydroxylase Inhibitor Daprodustat-Dialysis (ASCEND-D)

NCT02879305
View directory record Official record
Conditions
Anaemia, Aspergillosis, Allergic Bronchopulmonary
Interventions
Daprodustat, rhEPO, Placebo, Iron therapy
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 99 Years
Enrollment
2,964 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
126
States / cities
Huntsville, Alabama • Pine Bluff, Arkansas • Anaheim, California + 103 more
Source: ClinicalTrials.gov public record
Updated Dec 3, 2021 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Not applicable Interventional Results available

Engaging Patients in Colon Cancer Screening Decisions During COVID-19

NCT04548531
View directory record Official record
Conditions
Colon Cancer
Interventions
Shared Decision Making
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
45 Years to 75 Years
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 22, 2023 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Not applicable Interventional

Effectiveness of Influenza Vaccine Reminder Systems

NCT01852656
View directory record Official record
Conditions
Asthma, Chronic Obstructive Pulmonary Disease
Interventions
Postcard and IVR Reminder Group, Postcard Only Reminder Group, IVR Only Reminder Group
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
19 Years to 64 Years
Enrollment
12,255 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 14, 2013 · Synced Oct 18, 2026, 10:16 AM EDT
Completed Phase 1 Interventional

Vitamin D Testing and Treatment for COVID 19

NCT04407286
View directory record Official record
Conditions
Covid 19, Vitamin D Deficiency
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 30, 2021 · Synced Oct 18, 2026, 10:16 AM EDT
Withdrawn Phase 1 Interventional

Intermediate IND Severe Illness COVID-19 CP

NCT04411602
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome, COVID
Interventions
SARS-CoV-2 plasma
Drug
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
3
States / cities
Novi, Michigan • Southfield, Michigan • Warren, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 19, 2025 · Synced Oct 18, 2026, 10:16 AM EDT
Recruiting Phase 4 Interventional

Gastrointestinal Dysmotility on Aspiration Risk

NCT05455359
View directory record Official record
Conditions
Esophageal Motility Disorders, Gastric Motor Dysfunction, Aspiration Pneumonia, Gastro Esophageal Reflux
Interventions
Prucalopride, Famotidine
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
5 Years to 21 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 18, 2026, 10:16 AM EDT
Recruiting Not applicable Interventional

Artificial Intelligence Diagnostic Decision Support to Reduce Antimicrobial Prescriptions in Young Children With Colds

NCT06876259
View directory record Official record
Conditions
Acute Otitis Media (AOM), Upper Respiratory Infection
Interventions
Standard Clinical Ear Exam, AI app ear exam and diagnosis
Diagnostic Test
Lead sponsor
Timothy Shope
Other
Eligibility
6 Months to 24 Months
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 18, 2026, 10:16 AM EDT